Work through the list without notes or a calculator. If you cannot do a statement, follow its link, then come back. Guide = study guide; Practice = practice questions. This topic is shared by Calculus AB and Calculus BC.
Understanding
- I can explain why the search for a maximum or minimum inside an interval starts with critical points. (Guide: “What an optimization problem is”)
- I can name the quantity to optimise, the constraint and the interval in a problem, whatever its setting. (Guide: “The common structure”; Practice Q2)
- I can tell the maximum value apart from the location of the maximum, and answer the one that is asked. (Guide: “A note on notation and words”; Practice Q1, Q3)
Skills
- I can use a constraint to write a quantity as a function of one variable. (Guide: Worked example 2; Practice Q3, Q6(a))
- I can state the interval of allowed values from the situation, such as positive lengths. (Guide: “Where the interval comes from”; Practice Q2, Q6(a))
- I can find the absolute maximum and minimum on a closed interval with the candidates test, including endpoints. (Guide: Worked example 1; Practice Q1, Q5)
- I can find and test the critical point of a function I have built, then give the value and the dimensions that produce it. (Guide: Worked example 2; Practice Q6(b), Q6(c))
- I can minimise a distance by working with its square. (Practice Q7(a)–(c))
Reasoning
- I can justify an absolute extremum on an open interval with the single-critical-point argument and a first or second derivative test. (Guide: “The method”, step 7; Practice Q4, Q6(b))
- I can explain why the second derivative test alone does not prove an absolute extremum. (Guide: “Common misconceptions”; Practice Q5 note)
- I can explain why a critical point that seems natural may be a maximum when a minimum is wanted. (Practice Q7(d))
All ticked? Move on to Topic 5.11, Solving Optimization Problems, or return to the Calculus AB roadmap or the Calculus BC roadmap.